Dornfelder in German

(uncountable) A dark-skinned grape variety used for red wine, developed as a hybrid (Helfensteiner × Heroldrebe) by August Herold in 1955 at the Staatliche Lehr- und Versuchsanstalt für Wein- und Obstbau Weinsberg (State Education and Research Institute for Viticulture and Pomology Weinsberg) in Württemberg, Germany.